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NIST Atomic Spectra Database
Ionization Energies Data

Po (all spectra)
84 Data Rows Found 
Example of how to reference these results:
Kramida, A., Ralchenko, Yu., Reader, J., and NIST ASD Team (2024). NIST Atomic Spectra Database (ver. 5.12), [Online]. Available: https://physics.nist.gov/asd [2026, October 26]. National Institute of Standards and Technology, Gaithersburg, MD. DOI: https://doi.org/10.18434/T4W30F
BibTex Citation (new window)
 

 Ionization  Energy 
 (cm-1) 
  67 896.310         
  [156 000]            
  [220 000]            
  (290 000)            
  (460 000)            
  (557 000)            
  (871 000)            
  (1 008 000)            
  (1 178 000)            
  (1 339 000)            
  (1 500 000)            
  (1 686 000)            
  (1 895 000)            
  (2 073 000)            
  (2 266 000)            
  (2 452 000)            
  (3 354 000)            
  (3 584 000)            
  (3 815 000)            
  (4 050 000)            
  (4 500 000)            
  (4 760 000)            
  (5 410 000)            
  (5 680 000)            
  (5 960 000)            
  (6 470 000)            
  (6 980 000)            
  (7 487 000)            
  (8 000 000)            
  (8 510 000)            
  (9 020 000)            
  (9 530 000)            
  (10 080 000)            
  (10 610 000)            
  (11 120 000)            
  (11 600 000)            
  (12 200 000)            
  (12 700 000)            
  (15 042 000)            
  (15 510 000)            
  (16 018 000)            
  (16 550 000)            
  (17 059 000)            
  (17 559 000)            
  (18 398 000)            
  (18 914 000)            
  (19 470 000)            
  (20 003 000)            
  (22 100 000)            
  (22 608 000)            
  (23 172 000)            
  (23 697 000)            
  (25 761 000)            
  (26 358 000)            
  (27 826 000)            
  [28 424 900]            
  (46 659 000)            
  (47 829 000)            
  (49 071 000)            
  (50 394 000)            
  (51 660 000)            
  (52 886 000)            
  (55 297 000)            
  (56 580 000)            
  (57 999 000)            
  (59 306 000)            
  (62 960 000)            
  (64 081 000)            
  (65 339 000)            
  (66 484 000)            
  (73 009 000)            
  (74 356 000)            
  (77 026 000)            
  (78 300 000)            
  (166 683 000)            
  (169 764 000)            
  (173 175 000)            
  (176 313 000)            
  (200 493 000)            
  (204 502 000)            
  (209 607 000)            
  (212 853 000)            
  (847 400 800)            
  (862 879 000)            
Notes:
a Uncertainty of the listed value is unknown.

If you did not find the data you need, please inform the ASD Team.

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